Railway safety-signal



Patented Sept. 27, 1921.

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PAdams Alias.

rmLr'r AnaMs, or NOR H 13AY,?0NTARIO, CANADA;

RAILWAY" SAFETY-SIG AL; V

To all whom it may concern:

Be it known that I, P ILIP ADAMS, of the town ofNo-rth Bay, in thedistrict of Nipissing, in the Province of Ontario, Canada,

have invented certain newand useful Improvements in Railway Safety-Signals, of which the following is the specification.

My invention relates to improvements in railway safety signals and the object of the invention is to construct a mechanically operated device that will replace the ordinary torpedo at present in use. A further object is to construct a device which will be cheaper and more positive than the torpedo.

My invention consists of the parts constructed and arranged all as hereinafter more particularly described and illustrated in the accompanying drawings in which:

Figure 1 represents a side elevation of a portion or" a locomotive showing part of my device applied thereto and also showing the other portion of. the device clamped on one of the rails of the line.

Fig. 2 is a cross sectional view of a portion of my device adapted to be mounted on the locomotive.

Fig. 3 is a plan view of a portion of my device designed to be clamped to the'rail, and

Fig. 4. is a cross sectional view of a rail showing a portion of my device applied thereto.

Like characters of reference indicate corresponding parts in the dilferentviews.

1 is the cab of the locomotive. 2 is the tender. 3 is a ri ht angle bracket suitably secured to the side of the locomotive in the vicinity of the cab, and 4 is a link having a longitudinal slot 5 therein through which the pivot pin 6 extends into the bracket 3. 7 is a depending portion hinged to the bottom of the link 4: and having the serrations 8 on the forward and rear faces thereof.

9 is a bracket on the side of the cab. 10 is a rod hingedly secured at its lower end to the top of the link 1, said rod extending through the bracket 9 and provided at its upper end with a cap 11 carrying an outwardly extending lug 12. 13 is a spring interposed between the cap 11 andthe bracket 9 and normally holding the link/1 in such a position that the pin 6 will be at. the bottom of the slot 5. 14L is an emergency whistle.

15 is a control valve therefor connected in the air line 16. 17 is a lug on the rotatable portion of the valve 15, adapted to engage a Specification of Letters Patent. ,;App1ication filed. August-23,1926. Serial no.4o5,4s9

; i Paen ser a 19 2- the lug '12 on the cap 11. i 18 is a lever V suitably secured. to the rotatable portion of thevalve 15 for returning the valve to the normal position by hand. I

19 .1s an open loop of substantially rectangular shape having one end bent into a hook 20, adapted to extend around the head or the rail and then bent back to form an opposeclspiral spring 21,- the rail being clamped betweenthe hook 20 and the spiral spring 21.

' The operation of my device is as follows: v t V The loop 19 is applied to the rail as desired, in place of the torpedo, the loop extending outwardly. As: the locomotive passes the loop the teeth 8 of the depending portion '7 will engage'suoh loop, and consequently draw down the link 4: and the rod 10, causing the lug 12 to engage the lug 17 on the rotatable part of the valve. This will rotate the valve into the open position and cause the whistle to blow. Immediately this emergency signal is heard, the engineerv merely has to press down the lever 18, restoring the valve to the closed position and consequentlycutting off the whistle.

It will be seen that while the depending member 7 is in engagement with the loop 9, as the locomotive proceeds, the loop 9Iwill be pulled out of its normal shape until the depending member is freed therefrom, when the spring 13 will restore the link to' its normal position.

' It'will further be seen that the device will operate whether the locomotive is proceeding in a forward or the reverse direction, and further that the device can be applied with equal efliciency to any part of the locoing; to my invention will be simple and positive in action, and the loops which are used only once, can be supplied at a nominal cost.

' What I claim as my invention is.

1. In a railways'afety signal, the combination with a bracket depending from the side of the cab of a locomotive, of a link pivoted thereto, said link capable of vertical movement, a depending portion hinged to the lower end of the link,said depending portion having serrated forward and rear edges, an emergency warning signal on the locomotive, means on the track for engaging the teeth of the depending member thereby pulling the link downwardly, and means connected to the link for operating the warning signal when: the link is pulled downwardly.

2. In a railway safety signal, the combination with a bracket depending from the side of the cab of a locomotive, of a link pivoted thereto, said link capable of vertical movement, a depending portion hinged to the lower end of the link, said depending portion having serrated forward and rear edges, an emergency warning signal on the locomotive, means on the track for engaging the teeth of the depending member thereby pulling the link downwardly, a rod connected to the link, a cap at the top thereof having a laterally extending lug, a bracket on the cab, an air operated emergency Warning signal on the locomotive, an air line connecting therewith, a control valve situated in the air line, a rotatable portion of the valve having a laterally extending lug adapted to engage the aforesaid lug on the cab, and a lever suitably secured to the rotatable portion of the valve for manually returning the same to theclosed position.

3. In a railway safety signal, the combination with a rail, of a wire bent at one end to constitute a clamp extending about the T-head of the rail, the other end of the wire being bent into an open spiral loop of substantially rectangular shape extending clear of the rail, a warning signal on the train and means on the train for operating the warning signal when the said means engage the loop.

PHILIP ADAMS. 

